longhorn2006 -- the number who say no, even including the various crackpots (often bankrolled by energy interests) whose respective entitlements to the label 'scientist' on the matter are dubious, is DWARFED by the number who say yes -- the science is not unclear at this point, and further confirmatory data and studies are coming in at an already tremendous and increasing rate -- in the legitimate community, at least, many who'd been doubters have ceased to be recently